code: def step_all(self):
      import signal
      import os
  
      # die an ugly death
      os.kill(os.getpid(), signal.SIGKILL)
  
file_path: metaflow/test/core/tests/tag_catch.py
imports: from metaflow_test import MetaflowTest, ExpectationFailed, steps, tag
  from metaflow import current
label_desc: Use image node_id 5 for calling the TagCatchTest obj's underlying member method code with example usage: obj.step_all() without return types